Dumbbell Reverse Fly

1. Stand with feet hip width apart holding a light dumbbell in each hand, or sit on the end of a bench.
2. Hinge forward at the hips with a flat back until your torso is near parallel to the floor.
3. Let the dumbbells hang below your chest with palms facing each other and elbows slightly bent.
4. Brace your core and set your neck in a neutral position.
5. Raise both dumbbells out to your sides in a wide arc until your arms are level with your back.
6. Squeeze your shoulder blades together gently at the top for a moment.
7. Lower the dumbbells back under control to the hanging position.
8. Repeat for the desired reps without swinging your torso.

Common Mistakes

• Going too heavy: big dumbbells force momentum and turn the fly into a row-swing hybrid that the rear delts barely feel. Choose a weight you can raise slowly with a clear squeeze at the top.
• Standing up during the rep: raising the torso as you lift the weights uses the lower back to create motion. Set your hinge angle and hold it constant for the whole set.
• Straightening the arms fully: locked elbows lengthen the lever until the shoulders and traps take over. Keep a fixed soft bend in the elbows and move from the shoulder joint.
• Lifting past the back line: swinging the arms above torso level shifts tension into the traps. Stop when the arms are in line with your back and squeeze there.

Programming Tips

The dumbbell reverse fly is the simplest direct line to the rear delts, the muscle that balances all the pressing most programs are built on. Strong rear delts round out the shoulder from behind and pull the posture back upright, and they tolerate a lot of work. Program 3 to 4 sets of 12 to 20 reps on pull or shoulder days, two or three times a week; the tiny loads recover fast, so it can appear far more often than a press.

The weight is the test of honesty. Hinge over, keep a slight fixed elbow bend, and raise the dumbbells in a wide arc with the pinky side leading slightly, pausing for a beat at the top. The rear delt is a small muscle with poor leverage, so a strict set with 4 to 6 kg beats a heaved set with 14 kg every time. Progress in 1 to 2 kg steps, and when momentum sneaks in, do them seated with your chest on your thighs or lying face down on an incline bench.

Common Questions

Why do I have to go so light on reverse flys?

Because the arms are long levers and the rear delt is small. Swing big dumbbells and the traps and momentum take over. Light, strict, and paused is the entire method.

Reverse fly or face pull?

Both hit the rear delts; the face pull adds external rotation and more mid-trap work. They complement each other well, and choosing one usually comes down to whether a cable is free.

Should I squeeze my shoulder blades together?

Only gently. A full hard squeeze hands the work to the mid traps. Let the arms sweep back with the blades mostly still, and the rear delts keep the job.